fluree.db.dbfunctions.fns — com.fluree/db 1.0.0-rc3

* clj/s

(* ?ctx & args)

Returns product of all the numbers in the sequence.

+ clj/s

(+ ?ctx & args)

Returns sum of each argument.

- clj/s

(- ?ctx & args)

Returns difference of all the numbers in the sequence with the first number as the minuend.

/ clj/s

(/ ?ctx & args)

If no denominators are supplied, returns 1/numerator, else returns numerator divided by all of the denominators. Takes a sequence

< clj/s

(< ?ctx & args)

Returns non-nil if nums are in monotonically increasing order, otherwise false.

<= clj/s

(<= ?ctx & args)

Returns non-nil if nums are in monotonically non-decreasing order, otherwise false.

== clj/s

(== ?ctx & args)

Return true if arguments in sequence equal each other.

> clj/s

(> ?ctx & args)

Returns non-nil if nums are in monotonically decreasing order, otherwise false.

>= clj/s

(>= ?ctx & args)

Returns non-nil if nums are in monotonically non-increasing order, otherwise false.

?auth_id clj/s

(?auth_id ?ctx)

Gets current auth _id.

?o clj/s

(?o ?ctx)

Gets the object of an predicate from the current subject.

?p clj/s

(?p ?ctx)

(?p ?ctx additional-select)

Gets current predicate predicates

?pid clj/s

(?pid ?ctx)

Gets current predicate id

?pO clj/s

(?pO ?ctx)

Gets the most recent object of an predicate, as of the previous block

?s clj/s

(?s ?ctx)

(?s ?ctx additional-select)

Gets current subject.

?sid clj/s

(?sid ?ctx)

Gets current subject id

?user_id clj/s

(?user_id ?ctx)

Gets current user _id.

and clj/s

(and ?ctx & args)

Returns true if all in a sequence are true, else returns false

boolean clj/s

(boolean ?ctx x)

Coerce to boolean. Everything except false and nil is true.

cas clj/s

(cas ?ctx compare-val new-val)

Does a compare and set/swap operation as a transaction function.

ceil clj/s

(ceil ?ctx num)

Takes the ceiling of a number

contains? clj/s

(contains? ?ctx coll key)

count clj/s

(count ?ctx coll)

Returns the number of items in the collection. (count nil) returns 0. Also works on strings, arrays, and Java Collections and Maps

dec clj/s

(dec ?ctx n)

Decrements any number (or nil/null) by 1.

empty? clj/s

(empty? ?ctx arg)

True if empty or #{nil}, else false.

extract clj/s macro

(extract v)

Resolves a value if a channel. Must be used inside of a go-block.

flakes clj/s

(flakes ?ctx)

Gets the flakes from the current subject.

floor clj/s

(floor ?ctx num)

Takes the floor of a number

get clj/s

(get ?ctx subject pred)

Gets a value from an subject.

get-all clj/s

(get-all ?ctx subject path)

Follows an subject down the provided path and returns a set of all matching subjects.

get-in clj/s

(get-in ?ctx subject path)

hash-set clj/s

(hash-set ?ctx & args)

if-else clj/s

(if-else ?ctx test t f)

Evaluates test.

inc clj/s

(inc ?ctx n)

Increments any number (or nil/null) by 1.

lower-case clj/s

(lower-case ?ctx str)

Makes string lower case

max clj/s

(max ?ctx & args)

Gets max value from a sequence.

max-pred-val clj/s

(max-pred-val ?ctx pred-name)

Finds the maximum predicate value.

min clj/s

(min ?ctx & args)

Gets min value from a sequence.

mod clj/s

(mod ?ctx n d)

Modulus of num and div. Truncates toward negative infinity.

nil? clj/s

(nil? ?ctx arg)

True if nil, else false.

not clj/s

(not ?ctx arg)

Takes a boolean, true returns false, false returns true.

not= clj/s

(not= ?ctx & args)

Returns true if two (or more) values are not equal.

now clj/s

(now ?ctx)

Returns current epoch milliseconds on the executing machine.

nth clj/s

(nth ?ctx coll key)

Returns the nth item in a collection

objF clj/s

(objF ?ctx)

Gets the summed object of all false flakes

objT clj/s

(objT ?ctx)

Gets the summed object of all true flakes

or clj/s

(or ?ctx & args)

Returns true if any in the sequence are true, else returns false

query clj/s

(query ?ctx query-map)

(query ?ctx select from where block limit)

Executes a query

quot clj/s

(quot ?ctx n d)

Quot[ient] of dividing numerator by denominator.

rand clj/s

(rand ?ctx max)

(rand ?ctx max seed)

Returns a random number, seed is either provided or a we use the txn instant

re-find clj/s

(re-find ?ctx pattern string)

Execute a re-find operation of regex pattern on provided string.

relationship? clj/s

(relationship? ?ctx startSubject path endSubject)

Determines whether there is a relationship between two subjects

rem clj/s

(rem ?ctx n d)

Remainder of dividing numerator by denominator.

stack clj/s

(stack ?ctx)

Returns the current stack.

str clj/s

(str ?ctx & args)

Concatenates all in sequence.

subs clj/s

(subs ?ctx args)

Returns substring of a string with a start and optional end integer. Returned string is inclusive of start integer and exclusive of end integer.

upper-case clj/s

(upper-case ?ctx str)

Makes string upper-case

uuid clj/s

(uuid ?ctx)

Returns a random number, seed is either provided or a we use the txn instant

valid-email? clj/s

(valid-email? ?ctx email)

Determines whether an email is valid, based on its pattern